Talk:Lateral geniculate nucleus

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Contents 1 Intro 2 Layers 3 Layers 4 Burst vs Tonic mode 5 Lagged vs non lagged cells 6 body = nucleus

[edit] Intro

So there are multiple parts of this article that are taken word for word from "From Neuron to Brain" 4th edition by Nicholls et al., esp. from pages 408-409. I will work on changing this but would like some help, esp from the original writer of the pulled lines! -JeffreyN 03:55, 2 December 2005 (UTC)

I have the book in front of me (and coincidentally I am on the same page). What I can't seem to figure it, is that it says layers 1,4, and 6 are suplied from the contralatteral eye, but what does that mean? I think there are two sides to the LGN, a left and a right LGN, then the whole contralateral, ipsilateral arguement would make sense Paskari 17:11, 18 February 2007 (UTC)

I went ahead and included the line 'w.r.t the left or right LGN' when the term ipsilateral or contralateral was used. Paskari 17:15, 18 February 2007 (UTC)

[edit] Layers

I don't understand why the layers 6,4,1 contralateral, and 2,3,5 ipsilateral. You'd expect the rows to switch such that it would be 1,3,5 and 2,4,6. I realize that From Neuron to Brain says it's so, but it's not a very reliable book on this matter seeing as how it only has roughly 2 pages only on the LGN! Paskari 21:06, 27 March 2007 (UTC)

[edit] Layers

I don't understand why the layers 6,4,1 contralateral, and 2,3,5 ipsilateral. You'd expect the rows to switch such that it would be 1,3,5 and 2,4,6. I realize that From Neuron to Brain says it's so, but it's not a very reliable book on this matter seeing as how it only has roughly 2 pages only on the LGN! Paskari 21:06, 27 March 2007 (UTC)

"Neuroscience Exploring the Brain", Bear, Connors and Paradiso, 3rd Ed 2006 Agrees with "From Neuron to Brain" See diagram on page 318. So the top 4 layers alternate but the bottom two are switched. Maybe not so odd. We see that layer 2 projects to layer 3 but layer 1 obviously has to skip two layers to get to layer 4. I wonder if this has any significance in later processing. Maybe there is very small timeshift introduced by having slightly different physical routing structures. DrDavidGreen53 11:44, 24 May 2007 (UTC)

[edit] Burst vs Tonic mode

We need a description of the two spiking modes of the geniculate cells, if I fully understood it, I would do it myself Paskari 16:58, 19 April 2007 (UTC)

[edit] Lagged vs non lagged cells

Likewise, we need a description on these two cell types Paskari 16:58, 19 April 2007 (UTC)

[edit] body = nucleus

please say somewhere in the article that LGN equals the lateral geniculate body. Is one a gross anatomy and one is a functional nucleus way of saying it? same thing but different ways of looking at it? or what? 207.151.233.38 (talk) 19:17, 6 April 2008 (UTC)